remcos | 8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301

Analysis

max time kernel
149s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-12-2024 08:03

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General

Target

10ab4b6fb83aea3840ac04855974f62d.exe
Size

959KB
MD5

10ab4b6fb83aea3840ac04855974f62d
SHA1

c41572120bb8f298d4a8683321e7a3b1cc7c54da
SHA256

8c62537b7b875c364a79b98adaa8d341b4a52e4d0a27697f0f07b1209ed53301
SHA512

d414499348356d4028c97718126dbc51aa240a63b70f3236d73003821910735bcef0761da0a873b55abfb18b71820fcd6bf4e58bac98109274c477cc68633d94
SSDEEP

24576:TuWl35eXIVicKGaiT+zuOiNPjdbdpcg4qCYi:BnXicKE6zuOiNPjdZ4qCYi

Score

10^/10

remcos remotehost discovery execution rat

Malware Config

Extracted

Family

remcos

Botnet

RemoteHost

41.216.183.238:7112

Attributes

audio_folder
MicRecords
audio_record_time
5
connect_delay
0
connect_interval
1
copy_file
remcos.exe
copy_folder
Remcos
delete_file
false
hide_file
false
hide_keylog_file
false
install_flag
false
keylog_crypt
false
keylog_file
logs.dat
keylog_flag
false
keylog_folder
remcos
mouse_option
false
mutex
Rmc-Y7J88P
screenshot_crypt
false
screenshot_flag
false
screenshot_folder
Screenshots
screenshot_path
%AppData%
screenshot_time
10
startup_value
Remcos
take_screenshot_option
false
take_screenshot_time
5

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Remcos family
remcos

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2416	powershell.exe
756	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	10ab4b6fb83aea3840ac04855974f62d.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4528 set thread context of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	10ab4b6fb83aea3840ac04855974f62d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	10ab4b6fb83aea3840ac04855974f62d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4016	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4528	10ab4b6fb83aea3840ac04855974f62d.exe
4528	10ab4b6fb83aea3840ac04855974f62d.exe
4528	10ab4b6fb83aea3840ac04855974f62d.exe
756	powershell.exe
2416	powershell.exe
4528	10ab4b6fb83aea3840ac04855974f62d.exe
4528	10ab4b6fb83aea3840ac04855974f62d.exe
2416	powershell.exe
756	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4528	10ab4b6fb83aea3840ac04855974f62d.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	756	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4528 wrote to memory of 2416	4528	10ab4b6fb83aea3840ac04855974f62d.exe	93
PID 4528 wrote to memory of 2416	4528	10ab4b6fb83aea3840ac04855974f62d.exe	93
PID 4528 wrote to memory of 2416	4528	10ab4b6fb83aea3840ac04855974f62d.exe	93
PID 4528 wrote to memory of 756	4528	10ab4b6fb83aea3840ac04855974f62d.exe	95
PID 4528 wrote to memory of 756	4528	10ab4b6fb83aea3840ac04855974f62d.exe	95
PID 4528 wrote to memory of 756	4528	10ab4b6fb83aea3840ac04855974f62d.exe	95
PID 4528 wrote to memory of 4016	4528	10ab4b6fb83aea3840ac04855974f62d.exe	97
PID 4528 wrote to memory of 4016	4528	10ab4b6fb83aea3840ac04855974f62d.exe	97
PID 4528 wrote to memory of 4016	4528	10ab4b6fb83aea3840ac04855974f62d.exe	97
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99
PID 4528 wrote to memory of 4520	4528	10ab4b6fb83aea3840ac04855974f62d.exe	99

C:\Users\Admin\AppData\Local\Temp\10ab4b6fb83aea3840ac04855974f62d.exe
"C:\Users\Admin\AppData\Local\Temp\10ab4b6fb83aea3840ac04855974f62d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4528
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\10ab4b6fb83aea3840ac04855974f62d.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2416
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\myTuDsvNcebev.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:756
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\myTuDsvNcebev" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD2FF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4016
- C:\Users\Admin\AppData\Local\Temp\10ab4b6fb83aea3840ac04855974f62d.exe
  "C:\Users\Admin\AppData\Local\Temp\10ab4b6fb83aea3840ac04855974f62d.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4520

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
322af2b9b316812abe0b4e969a3fee6f

SHA1
c6878189cb2a7996f147cde1b0013ef5839ccafd

SHA256
a2dda3bc2cad20f28b796c7abf065e5ef771faf48a837ab55b6dd5647deae07d

SHA512
6a79b003f74349244aaca7c2db25402919d3772f0817bcf8f673227a41a84ba8d392cf3d5bdf6fe4beebc6e00401fa3271a075aa85fd839156a31ace974e5176

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d0it2lfx.fno.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD2FF.tmp

Filesize
1KB

MD5
7884f200befcbb6b7226c5e68b9aac48

SHA1
a060e96383d28b2a799b0aaf1dc54158de124843

SHA256
9bb74d3c70b933d63ca83c0a8003479e2774307d96b06ad63dc8fed1532da993

SHA512
24edcb4f801831f0608990d92acf82f18b9543065d47aa349fd9eb09c95b6d1352406ca9809093b1b4c623d34939eee8db304004e8bee0dd12e05795d2e826d4

Download Submit
memory/756-59-0x0000000007630000-0x0000000007662000-memory.dmp

Filesize
200KB

Download
memory/756-87-0x0000000007B60000-0x0000000007B6E000-memory.dmp

Filesize
56KB

Download
memory/756-86-0x0000000007B30000-0x0000000007B41000-memory.dmp

Filesize
68KB

Download
memory/756-72-0x0000000007870000-0x0000000007913000-memory.dmp

Filesize
652KB

Download
memory/756-88-0x0000000007B70000-0x0000000007B84000-memory.dmp

Filesize
80KB

Download
memory/756-70-0x0000000006BF0000-0x0000000006C0E000-memory.dmp

Filesize
120KB

Download
memory/756-60-0x00000000758F0000-0x000000007593C000-memory.dmp

Filesize
304KB

Download
memory/756-48-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/756-49-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/756-40-0x0000000005FE0000-0x0000000006334000-memory.dmp

Filesize
3.3MB

Download
memory/756-97-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/756-24-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/2416-18-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/2416-71-0x00000000758F0000-0x000000007593C000-memory.dmp

Filesize
304KB

Download
memory/2416-23-0x0000000005D10000-0x0000000005D76000-memory.dmp

Filesize
408KB

Download
memory/2416-21-0x00000000055C0000-0x00000000055E2000-memory.dmp

Filesize
136KB

Download
memory/2416-19-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/2416-93-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/2416-17-0x00000000056E0000-0x0000000005D08000-memory.dmp

Filesize
6.2MB

Download
memory/2416-90-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

Filesize
32KB

Download
memory/2416-16-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/2416-15-0x0000000002CA0000-0x0000000002CD6000-memory.dmp

Filesize
216KB

Download
memory/2416-89-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/2416-85-0x0000000007B20000-0x0000000007BB6000-memory.dmp

Filesize
600KB

Download
memory/2416-22-0x0000000005660000-0x00000000056C6000-memory.dmp

Filesize
408KB

Download
memory/2416-84-0x0000000007910000-0x000000000791A000-memory.dmp

Filesize
40KB

Download
memory/2416-52-0x0000000006570000-0x000000000658E000-memory.dmp

Filesize
120KB

Download
memory/2416-53-0x00000000067B0000-0x00000000067FC000-memory.dmp

Filesize
304KB

Download
memory/2416-83-0x00000000078A0000-0x00000000078BA000-memory.dmp

Filesize
104KB

Download
memory/2416-82-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/4520-41-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-55-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-105-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-54-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-104-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-103-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-102-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-99-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-56-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-101-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-47-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-100-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-98-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-58-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-45-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4520-46-0x0000000000400000-0x000000000047F000-memory.dmp

Filesize
508KB

Download
memory/4528-4-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-3-0x0000000004BC0000-0x0000000004C52000-memory.dmp

Filesize
584KB

Download
memory/4528-2-0x0000000005090000-0x0000000005634000-memory.dmp

Filesize
5.6MB

Download
memory/4528-1-0x0000000000200000-0x00000000002F2000-memory.dmp

Filesize
968KB

Download
memory/4528-0-0x000000007504E000-0x000000007504F000-memory.dmp

Filesize
4KB

Download
memory/4528-5-0x0000000004D60000-0x0000000004D6A000-memory.dmp

Filesize
40KB

Download
memory/4528-6-0x0000000004E30000-0x0000000004ECC000-memory.dmp

Filesize
624KB

Download
memory/4528-51-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-7-0x0000000005F60000-0x0000000005F7C000-memory.dmp

Filesize
112KB

Download
memory/4528-8-0x000000007504E000-0x000000007504F000-memory.dmp

Filesize
4KB

Download
memory/4528-9-0x0000000075040000-0x00000000757F0000-memory.dmp

Filesize
7.7MB

Download
memory/4528-10-0x0000000006360000-0x0000000006420000-memory.dmp

Filesize
768KB

Download